DECLINING RATE FILTRATION

被引：4

作者：

CLEASBY, JL

机构：

[1] Iowa State Universiry, Ames

来源：

WATER SCIENCE AND TECHNOLOGY | 1993年 / 27卷 / 7-8期

关键词：

FILTERS; FILTRATION; FLOW CONTROL; HYDRAULICS; RATES; WATER TREATMENT; SEWAGE TREATMENT; WATER QUALITY;

D O I：

10.2166/wst.1993.0529

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Declining rate filtration is one of several flow control alternatives available for gravity filtration plants with four or more filters. Experimental and theoretical studies of declining rate filtration have provided the foundation for rational design procedures. This paper presents design procedures for estimating the filter system head needed for a declining rate filtration plant, and to predict the water level variations that will occur during operation. The paper also discusses the choice between inlet versus outlet rate limitation, the choice of type of rate limitation device, and the impact of operation of a declining rate filtration plant below full design load.

引用

页码：11 / 18

页数：8